I am lookign for showcases to present the vulnerabilites present to our group, i have tried using WebGoat but those were relatively simple and very few cases. Can you suggest some other site having such showcases which can be used during training ..

Here is a list of things that you can try. I have not really looked at all of these. Like you I ran through WebGoat (or most of it) and didn't get to the rest of this. The Foundstone Hacme Bank comes highly recommended and it now looks like they have a lot more applications.